DeleteBot

Deletes all versions of the bot, including the $LATEST version. To delete
a specific version of the bot, use the DeleteBotVersion operation.

If a bot has an alias, you can't delete it. Instead, the DeleteBot
operation returns a ResourceInUseException exception that includes a reference to
the alias that refers to the bot. To remove the reference to the bot, delete the alias.
If you
get the same exception again, delete the referring alias until the DeleteBot
operation is successful.